Granted Patent
Utility
US 5,078,713 · App. 07/444,027
Cryosurgical probe
Inventor:
Kelvin John VARNEY
Patented Case
View Patent ↗
Granted: Jan 7, 1992
Filed: Nov 30, 1989
Inventor
Kelvin John VARNEY
Assignee (at issue)
Spembly Medical Limited
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.